Ordering Numbers to 100

Ordering numbers develops magnitude understanding—knowing not just what numbers are but how they relate to each other spatially.

• Framework: Montessori
• Unit: Mathematics
• Learning area: Number Concepts
• Level: Ages 4-6

Objectives

• Arrange numbers in ascending and descending order
• Develop number magnitude understanding
• Build sequential thinking

Materials

• Numeral cards 1-100 (subset)
• Number line
• Ordering mat

Instructions

1. Select 5 random numeral cards. 2. 'Put these in order from smallest to biggest.' 3. Child arranges on mat. 4. Verify using number line. 5. Reverse: order from biggest to smallest. 6. Increase to 8-10 cards. 7. Include numbers from different decades.

Educator tip

Start with numbers far apart (3, 27, 58, 84) before using close numbers (41, 43, 47, 49).

Assessment

Child orders sets of numbers in both ascending and descending order.

More from Mathematics

• Number Bonds to 10
• Doubles and Near Doubles
• Making Ten Strategy
• Measuring Length with Non-Standard Units
• Measuring with Rulers
• Weighing and Comparing Mass
• Telling Time: Hours and Half Hours
• Calendar and Date Concepts